summaryrefslogtreecommitdiff
blob: 393286cbe5ea5427c8402b97e3358c301f941efc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
# Copyright 2017-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

# @ECLASS: meson.eclass
# @MAINTAINER:
# William Hubbs <williamh@gentoo.org>
# Mike Gilbert <floppym@gentoo.org>
# @SUPPORTED_EAPIS: 6 7
# @BLURB: common ebuild functions for meson-based packages
# @DESCRIPTION:
# This eclass contains the default phase functions for packages which
# use the meson build system.
#
# @EXAMPLE:
# Typical ebuild using meson.eclass:
#
# @CODE
# EAPI=6
#
# inherit meson
#
# ...
#
# src_configure() {
# 	local emesonargs=(
# 		$(meson_use qt4)
# 		$(meson_feature threads)
# 		$(meson_use bindist official_branding)
# 	)
# 	meson_src_configure
# }
#
# ...
#
# @CODE

case ${EAPI:-0} in
	6|7) ;;
	*) die "EAPI=${EAPI} is not supported" ;;
esac

if [[ -z ${_MESON_ECLASS} ]]; then

inherit multiprocessing ninja-utils python-utils-r1 toolchain-funcs

if [[ ${EAPI} == 6 ]]; then
	inherit eapi7-ver
fi

fi

EXPORT_FUNCTIONS src_configure src_compile src_test src_install

if [[ -z ${_MESON_ECLASS} ]]; then
_MESON_ECLASS=1

MESON_DEPEND=">=dev-util/meson-0.51.2
	>=dev-util/ninja-1.8.2"

if [[ ${EAPI:-0} == [6] ]]; then
	DEPEND=${MESON_DEPEND}
else
	BDEPEND=${MESON_DEPEND}
fi

# @ECLASS-VARIABLE: BUILD_DIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# Build directory, location where all generated files should be placed.
# If this isn't set, it defaults to ${WORKDIR}/${P}-build.

# @ECLASS-VARIABLE: EMESON_SOURCE
# @DEFAULT_UNSET
# @DESCRIPTION:
# The location of the source files for the project; this is the source
# directory to pass to meson.
# If this isn't set, it defaults to ${S}

# @VARIABLE: emesonargs
# @DEFAULT_UNSET
# @DESCRIPTION:
# Optional meson arguments as Bash array; this should be defined before
# calling meson_src_configure.

# @VARIABLE: emesontestargs
# @DEFAULT_UNSET
# @DESCRIPTION:
# Optional meson test arguments as Bash array; this should be defined before
# calling meson_src_test.

# @VARIABLE: MYMESONARGS
# @DEFAULT_UNSET
# @DESCRIPTION:
# User-controlled environment variable containing arguments to be passed to
# meson in meson_src_configure.

read -d '' __MESON_ARRAY_PARSER <<"EOF"
import shlex
import sys

# See http://mesonbuild.com/Syntax.html#strings
def quote(str):
	escaped = str.replace("\\\\", "\\\\\\\\").replace("'", "\\\\'")
	return "'{}'".format(escaped)

print("[{}]".format(
	", ".join([quote(x) for x in shlex.split(" ".join(sys.argv[1:]))])))
EOF

# @FUNCTION: _meson_env_array
# @INTERNAL
# @DESCRIPTION:
# Parses the command line flags and converts them into an array suitable for
# use in a cross file.
#
# Input: --single-quote=\' --double-quote=\" --dollar=\$ --backtick=\`
#        --backslash=\\ --full-word-double="Hello World"
#        --full-word-single='Hello World'
#        --full-word-backslash=Hello\ World
#        --simple --unicode-8=© --unicode-16=𐐷 --unicode-32=𐤅
#
# Output: ['--single-quote=\'', '--double-quote="', '--dollar=$',
#          '--backtick=`', '--backslash=\\', '--full-word-double=Hello World',
#          '--full-word-single=Hello World',
#          '--full-word-backslash=Hello World', '--simple', '--unicode-8=©',
#          '--unicode-16=𐐷', '--unicode-32=𐤅']
#
_meson_env_array() {
	python -c "${__MESON_ARRAY_PARSER}" "$@"
}

# @FUNCTION: _meson_get_machine_info
# @USAGE: <tuple>
# @RETURN: system/cpu_family/cpu variables
# @INTERNAL
# @DESCRIPTION:
# Translate toolchain tuple into machine values for meson.
_meson_get_machine_info() {
	local tuple=$1

	# system roughly corresponds to uname -s (lowercase)
	case ${tuple} in
		*-aix*)          system=aix ;;
		*-cygwin*)       system=cygwin ;;
		*-darwin*)       system=darwin ;;
		*-freebsd*)      system=freebsd ;;
		*-linux*)        system=linux ;;
		mingw*|*-mingw*) system=windows ;;
		*-solaris*)      system=sunos ;;
	esac

	cpu_family=$(tc-arch "${tuple}")
	case ${cpu_family} in
		amd64) cpu_family=x86_64 ;;
		arm64) cpu_family=aarch64 ;;
	esac

	# This may require adjustment based on CFLAGS
	cpu=${tuple%%-*}
}

# @FUNCTION: _meson_create_cross_file
# @RETURN: path to cross file
# @INTERNAL
# @DESCRIPTION:
# Creates a cross file. meson uses this to define settings for
# cross-compilers. This function is called from meson_src_configure.
_meson_create_cross_file() {
	local system cpu_family cpu
	_meson_get_machine_info "${CHOST}"

	local fn=${T}/meson.${CHOST}.${ABI}.ini

	cat > "${fn}" <<-EOF
	[binaries]
	ar = $(_meson_env_array "$(tc-getAR)")
	c = $(_meson_env_array "$(tc-getCC)")
	cpp = $(_meson_env_array "$(tc-getCXX)")
	fortran = $(_meson_env_array "$(tc-getFC)")
	llvm-config = '$(tc-getPROG LLVM_CONFIG llvm-config)'
	objc = $(_meson_env_array "$(tc-getPROG OBJC cc)")
	objcpp = $(_meson_env_array "$(tc-getPROG OBJCXX c++)")
	pkgconfig = '$(tc-getPKG_CONFIG)'
	strip = $(_meson_env_array "$(tc-getSTRIP)")
	windres = $(_meson_env_array "$(tc-getRC)")

	[properties]
	c_args = $(_meson_env_array "${CFLAGS} ${CPPFLAGS}")
	c_link_args = $(_meson_env_array "${CFLAGS} ${LDFLAGS}")
	cpp_args = $(_meson_env_array "${CXXFLAGS} ${CPPFLAGS}")
	cpp_link_args = $(_meson_env_array "${CXXFLAGS} ${LDFLAGS}")
	fortran_args = $(_meson_env_array "${FCFLAGS}")
	fortran_link_args = $(_meson_env_array "${FCFLAGS} ${LDFLAGS}")
	objc_args = $(_meson_env_array "${OBJCFLAGS} ${CPPFLAGS}")
	objc_link_args = $(_meson_env_array "${OBJCFLAGS} ${LDFLAGS}")
	objcpp_args = $(_meson_env_array "${OBJCXXFLAGS} ${CPPFLAGS}")
	objcpp_link_args = $(_meson_env_array "${OBJCXXFLAGS} ${LDFLAGS}")
	needs_exe_wrapper = true
	sys_root = '${SYSROOT}'
	pkg_config_libdir = '${PKG_CONFIG_LIBDIR:-${EPREFIX}/usr/$(get_libdir)/pkgconfig}'

	[host_machine]
	system = '${system}'
	cpu_family = '${cpu_family}'
	cpu = '${cpu}'
	endian = '$(tc-endian "${CHOST}")'
	EOF

	echo "${fn}"
}

# @FUNCTION: _meson_create_native_file
# @RETURN: path to native file
# @INTERNAL
# @DESCRIPTION:
# Creates a native file. meson uses this to define settings for
# native compilers. This function is called from meson_src_configure.
_meson_create_native_file() {
	local system cpu_family cpu
	_meson_get_machine_info "${CBUILD}"

	local fn=${T}/meson.${CBUILD}.${ABI}.ini

	cat > "${fn}" <<-EOF
	[binaries]
	ar = $(_meson_env_array "$(tc-getBUILD_AR)")
	c = $(_meson_env_array "$(tc-getBUILD_CC)")
	cpp = $(_meson_env_array "$(tc-getBUILD_CXX)")
	fortran = $(_meson_env_array "$(tc-getBUILD_PROG FC gfortran)")
	llvm-config = '$(tc-getBUILD_PROG LLVM_CONFIG llvm-config)'
	objc = $(_meson_env_array "$(tc-getBUILD_PROG OBJC cc)")
	objcpp = $(_meson_env_array "$(tc-getBUILD_PROG OBJCXX c++)")
	pkgconfig = '$(tc-getBUILD_PKG_CONFIG)'
	strip = $(_meson_env_array "$(tc-getBUILD_STRIP)")
	windres = $(_meson_env_array "$(tc-getBUILD_PROG RC windres)")

	[properties]
	c_args = $(_meson_env_array "${BUILD_CFLAGS} ${BUILD_CPPFLAGS}")
	c_link_args = $(_meson_env_array "${BUILD_CFLAGS} ${BUILD_LDFLAGS}")
	cpp_args = $(_meson_env_array "${BUILD_CXXFLAGS} ${BUILD_CPPFLAGS}")
	cpp_link_args = $(_meson_env_array "${BUILD_CXXFLAGS} ${BUILD_LDFLAGS}")
	fortran_args = $(_meson_env_array "${BUILD_FCFLAGS}")
	fortran_link_args = $(_meson_env_array "${BUILD_FCFLAGS} ${BUILD_LDFLAGS}")
	objc_args = $(_meson_env_array "${BUILD_OBJCFLAGS} ${BUILD_CPPFLAGS}")
	objc_link_args = $(_meson_env_array "${BUILD_OBJCFLAGS} ${BUILD_LDFLAGS}")
	objcpp_args = $(_meson_env_array "${BUILD_OBJCXXFLAGS} ${BUILD_CPPFLAGS}")
	objcpp_link_args = $(_meson_env_array "${BUILD_OBJCXXFLAGS} ${BUILD_LDFLAGS}")
	needs_exe_wrapper = false
	pkg_config_libdir = '${BUILD_PKG_CONFIG_LIBDIR:-${EPREFIX}/usr/$(get_libdir)/pkgconfig}'

	[build_machine]
	system = '${system}'
	cpu_family = '${cpu_family}'
	cpu = '${cpu}'
	endian = '$(tc-endian "${CBUILD}")'
	EOF

	echo "${fn}"
}

# @FUNCTION: meson_use
# @USAGE: <USE flag> [option name]
# @DESCRIPTION:
# Given a USE flag and meson project option, outputs a string like:
#
#   -Doption=true
#   -Doption=false
#
# If the project option is unspecified, it defaults to the USE flag.
meson_use() {
	usex "$1" "-D${2-$1}=true" "-D${2-$1}=false"
}

# @FUNCTION: meson_feature
# @USAGE: <USE flag> [option name]
# @DESCRIPTION:
# Given a USE flag and meson project option, outputs a string like:
#
#   -Doption=enabled
#   -Doption=disabled
#
# If the project option is unspecified, it defaults to the USE flag.
meson_feature() {
	usex "$1" "-D${2-$1}=enabled" "-D${2-$1}=disabled"
}

# @FUNCTION: meson_src_configure
# @USAGE: [extra meson arguments]
# @DESCRIPTION:
# This is the meson_src_configure function.
meson_src_configure() {
	debug-print-function ${FUNCNAME} "$@"

	local BUILD_CFLAGS=${BUILD_CFLAGS}
	local BUILD_CPPFLAGS=${BUILD_CPPFLAGS}
	local BUILD_CXXFLAGS=${BUILD_CXXFLAGS}
	local BUILD_FCFLAGS=${BUILD_FCFLAGS}
	local BUILD_OBJCFLAGS=${BUILD_OBJCFLAGS}
	local BUILD_OBJCXXFLAGS=${BUILD_OBJCXXFLAGS}
	local BUILD_LDFLAGS=${BUILD_LDFLAGS}
	local BUILD_PKG_CONFIG_LIBDIR=${BUILD_PKG_CONFIG_LIBDIR}
	local BUILD_PKG_CONFIG_PATH=${BUILD_PKG_CONFIG_PATH}

	if tc-is-cross-compiler; then
		: ${BUILD_CFLAGS:=-O1 -pipe}
		: ${BUILD_CXXFLAGS:=-O1 -pipe}
		: ${BUILD_FCFLAGS:=-O1 -pipe}
		: ${BUILD_OBJCFLAGS:=-O1 -pipe}
		: ${BUILD_OBJCXXFLAGS:=-O1 -pipe}
	else
		: ${BUILD_CFLAGS:=${CFLAGS}}
		: ${BUILD_CPPFLAGS:=${CPPFLAGS}}
		: ${BUILD_CXXFLAGS:=${CXXFLAGS}}
		: ${BUILD_FCFLAGS:=${FCFLAGS}}
		: ${BUILD_LDFLAGS:=${LDFLAGS}}
		: ${BUILD_OBJCFLAGS:=${OBJCFLAGS}}
		: ${BUILD_OBJCXXFLAGS:=${OBJCXXFLAGS}}
		: ${BUILD_PKG_CONFIG_LIBDIR:=${PKG_CONFIG_LIBDIR}}
		: ${BUILD_PKG_CONFIG_PATH:=${PKG_CONFIG_PATH}}
	fi

	local mesonargs=(
		meson setup
		--buildtype plain
		--libdir "$(get_libdir)"
		--localstatedir "${EPREFIX}/var/lib"
		--prefix "${EPREFIX}/usr"
		--sysconfdir "${EPREFIX}/etc"
		--wrap-mode nodownload
		--build.pkg-config-path "${EPREFIX}/usr/share/pkgconfig"
		--pkg-config-path "${EPREFIX}/usr/share/pkgconfig"
		--native-file "$(_meson_create_native_file)"
	)

	if tc-is-cross-compiler; then
		mesonargs+=( --cross-file "$(_meson_create_cross_file)" )
	fi

	BUILD_DIR="${BUILD_DIR:-${WORKDIR}/${P}-build}"

	# Handle quoted whitespace
	eval "local -a MYMESONARGS=( ${MYMESONARGS} )"

	mesonargs+=(
		# Arguments from ebuild
		"${emesonargs[@]}"

		# Arguments passed to this function
		"$@"

		# Arguments from user
		"${MYMESONARGS[@]}"

		# Source directory
		"${EMESON_SOURCE:-${S}}"

		# Build directory
		"${BUILD_DIR}"
	)

	# Used by symbolextractor.py
	# https://bugs.gentoo.org/717720
	tc-export NM
	tc-getPROG READELF readelf >/dev/null

	# https://bugs.gentoo.org/625396
	python_export_utf8_locale

	# https://bugs.gentoo.org/720818
	export -n {C,CPP,CXX,F,FC,OBJC,OBJCXX,LD}FLAGS PKG_CONFIG_{LIBDIR,PATH}

	# https://bugs.gentoo.org/720860
	if ver_test "$(meson --version)" -lt "0.54"; then
		local -x CFLAGS=${BUILD_CFLAGS}
		local -x CPPFLAGS=${BUILD_CPPFLAGS}
		local -x CXXFLAGS=${BUILD_CXXFLAGS}
		local -x FFLAGS=${BUILD_FCFLAGS}
		local -x OBJCFLAGS=${BUILD_OBJCFLAGS}
		local -x OBJCXXFLAGS=${BUILD_OBJCXXFLAGS}
		local -x LDFLAGS=${BUILD_LDFLAGS}
	fi

	echo "${mesonargs[@]}" >&2
	"${mesonargs[@]}" || die
}

# @FUNCTION: meson_src_compile
# @USAGE: [extra ninja arguments]
# @DESCRIPTION:
# This is the meson_src_compile function.
meson_src_compile() {
	debug-print-function ${FUNCNAME} "$@"

	eninja -C "${BUILD_DIR}" "$@"
}

# @FUNCTION: meson_src_test
# @USAGE: [extra meson test arguments]
# @DESCRIPTION:
# This is the meson_src_test function.
meson_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	local mesontestargs=(
		-C "${BUILD_DIR}"
	)
	[[ -n ${NINJAOPTS} || -n ${MAKEOPTS} ]] &&
		mesontestargs+=(
			--num-processes "$(makeopts_jobs ${NINJAOPTS:-${MAKEOPTS}})"
		)

	# Append additional arguments from ebuild
	mesontestargs+=("${emesontestargs[@]}")

	set -- meson test "${mesontestargs[@]}" "$@"
	echo "$@" >&2
	"$@" || die "tests failed"
}

# @FUNCTION: meson_src_install
# @USAGE: [extra ninja install arguments]
# @DESCRIPTION:
# This is the meson_src_install function.
meson_src_install() {
	debug-print-function ${FUNCNAME} "$@"

	DESTDIR="${D}" eninja -C "${BUILD_DIR}" install "$@"
	einstalldocs
}

fi